Add support for recv_window parameter and custom options for REST client (#7)

* remove unused/unexisting method. Add missing semi-colon. Add support for recvWindow parameter, optional, with default value. Add support for custom sync time interval.

* add new params to rest client constructor

* add recv and sync as options object, optional, with updated docs

* cleaning

* whitespace

* allow override via params

* param consistency

Co-authored-by: tiagosiebler <ts@github.com>

lib/rest-client.js

@@ -5,7 +5,7 @@ const Request = require('./request.js');
 
 module.exports = class RestClient {
 
-  constructor(key, secret, livenet=false) {
+  constructor(key, secret, livenet=false, options={}) {
     this.request = new Request(...arguments);
   }